Tobacco pipe



DeC. 2, s U n- TOBACCO PIPE Filed Oct. 12. 1954 INVENTOR. I PHILIP 5. DOUMITT ATTORNEKS cepts of the present invention;

2,862,506 Patented Dec.2,' 1958 Uflitfi W Patent This invention relates to tobacco pipes, and particularly to improvements in tobacco pipes of the type having a bowl scraping device or contrivance. The present application is copending with my prior application entitled- Tobacco Pipe Bowl Actuated Scraper, Serial No. 311,983; filed September 29, 1952, now Patent No. 2,745,414 of May 15, 1956. r

.In' my-prior' application, above identified, thereis disclosed a tobacco pipe having a rotatable bowl, and a nonrotatable scraper operable upon rotation of the bowl to scrape the interior walls of the bowl.

h It is a main object of the present invention to provide a tobacco pipe of the above general type having a bowl scraper which iseven more simple and. less expensive 'tharr the scraper device of the-pipe of my prior application, and particularly to provide a scraper which yieldingly engages the interior walls of the bowl soas to permit the scraper to ride readily over irregularities of sa'idwalls. r"

Another object of the present invention isto provide a pipehaving; a bowl scraping device which not only functions .to--scrape the interior walls of the bowl but alsofunctions to scrape,th e walls of the smoke hole which in ,thispipe,;plaees the-interioriof the bowl in communication with a chamber in the base of the pipe.

7 A- further object of therpresent' invention is to provide a; pipehaving a scraping device formed 'of 'resilient'or yieldable material and'arranged and shaped to permit it to be readily assembled or disassembled by merely deforming parts of the device.

A still further object of the present invention is to provide a-pipe of the above general type with an improved mouthpiece, particularly-sucha device wherein.

the mouthpiece is equipped with a trough-shaped element which is so constructed and so arranged within a passageway in the pipe base as to scrape the walls thereof upon turning movement relative thereto.

Various other objects of the present invention will be apparent from the following description taken in connection with the accompanying drawings, wherein;

Fig. 1 is a plan view of a pipe embodying the con- Fig. 2 is a longitudinal sectional view through the pipe disclosed in Fig.1, takenalong line 2-2 of Fig. 1; Fig. 3 is 'a sectional view taken along line 33 of Fig. 2; i

l Fig. 4 is a perspective view of the mouthpiece of the pipe; I

I Fig. 5 is aplan view ofthe'base of the pipe, with the bowl,,scraper and mouthpiece removed; 7 Fig. 6 is an enlarged viewofthe scraper; and Fig.7 is a sectional view through the bowl of the pipe, showing the scraperinthe process of being removed.

Referring to the accompanying drawings wherein similar referencev characters designate similarparts throughout, the pipe disclosed generally includes a,.,bowl 11 revolvably mounted on a bowl mounting portion 13: of a pipe base, the base including a tubular stem portion 15 which slidably receives the stem 17 of a mouthpiece Referring to the parts more in detail, bowl 11 has a reduced, depending and externally threaded coaxial portion 21 which is threadedly received by internal threads 22 formed on the interior Wall of a circular recess coaxially formed in'the upper end of the bowl mounting portion 13. The interior of the bowl is defined by a sidewall 23 which merges into a bottom wall 24. In the center of the bottom wall there is formed a circular axial hole-25 which communicates with a chamber 27 a formed in the bowl mounting portion 13.

Chamber 27 is generally cup shaped and is of a size less than the diameter of the portion 21 to provide a shoulder 28 (Fig. 3); This shoulder is spaced from the upper end face of the :bowl mounting portion 13 a disbase and extending coaxially through the stem portion- 15; .Pas'sage'way 31 terminates in the bowl mounting portion in'a fiat wall 33 which is arranged normal to the axis of, said passageway. Passageway 31, chamber 27, and the recess defined byinternal threads 22 define a'pass'age throughlthe pipe base.

Mounted on the bowl and vertically movable therewith is 'ascraper comprising arsingle piece or length of,

spring wire. The piece of wire is bent toprovide a loop portion 41,- the 'ends of which terminate in a pair of short, closely adjacent,'parallel leg portions 43, the latter merging into a pairof bowl scraping arms 45 and 46. Arms 45 and 46 are of unequal length so that their upper ends engage the interior walls of the bowl at difierent levels.

'The loop 41 is of generally rectangular configuration,

and the side portions of said loop are slidably receivable within a pair of vertical slots 51 in the bowl mounting portion 13. Thus, the scraper device is prevented from rotating or turning with rotary movement of the bowl 11, but may be moved upwardly within the slots 51 to travel with the bowl 11 when the bowl is unthreaded.

Leg portions 43 of the scraper device are disposed within hole 25. The leg portions have a combined cross-sectional area substantially less than that of hole 25 to allow for free passage of smoke from the bowl through the hole and into chamber 27. The scraper is formed so that when it is unrestrained the leg portions 43 are disposed fartherv apartthan as shown in Fig.2

whereby the'leg portions yieldingly engage the walls of thesmoke hole 25. e

Arms 45 and 46 of the scraper device diverge up;

' 2, and the arms arespacecl further'apartthan as shown scraperdevice is mounted on the bowl 11 the upperpor tions" of theloop and the arms will, in effect, yieldingly in Fig. 2, when the arms are unrestrained, so .that the arms yieldingly engage the interior bottom and side walls of bowl 11. It is also pointedout that the scraper device is designed so thatthe upper portions-.of loop 41 and therespectivelyadjacent portions. of arms 45 and46 are normally disposed in positions slightly closer to one another, when the scraper device isunrestrained,

than in the position shown in Fig. 2, so that whenthe clamp the bottom wall of the bowl. thereb-etween.

The'stem .17, previously mentioned, has a short cylin dric alportion 62 at one' end fitting on a reduced end 63 of mouthpiece 19. The remainderof the stem fis of generally -trough form' and has a semicircular cross- 2,862,506 r V V sectional shape. mouthpiece portion 19 is closed by an end wall 64. which is disposed in flush sealing engagement with end wall 33 when the pipe is assembled (Fig. 2). The opposite end of the stem is. partially. closed. byreduced end 63. Mouthpiece 19 has a single passage 65 formed therethrough, passage 65 communicating with passageway 31 at a place radially spaced. from the walls of said trough-shaped stem.

Loop 4.-1 of the scraper device extends downwardly into cylindrical passageway 31 to a point just above end wall 64 of stem 17, and thus will not interfere with the insertion of the stem in the pipe base ifv the stem is inserted with the trough facing upwardly in a position to enable the stem to receive and retain moisture produced during the time that the pipe is smoked. If the stem is inserted into passageway 31 with the trough facing downwardly, as the parts are shown in. Fig. 2, the end wall 64 will engage loop 41, preventing the stem from being fully inserted into the cylindrical passageway. Thus, the user is apprised of this incorrect orientation and can rotate the stem 17 until it. can be fully inserted into the pipe base.

In order to clean the pipe of the present invention it is merely necessary to grasp the bowl 11 and rotate the same relative to the pipe base in a direction to unthread it. Since the scraper device is held against rota.- tion by the walls of slots 51 in the pipe base, the scraper arms 45 and 46 relatively move along the interior walls of the bowl during such unthreading movement, scraping the burned tobacco which has adhered thereto. Also, leg portions 43 of the scraper device simultaneously relatively move along the walls of smoke hole 25 and thus clean these walls. As the bowl is unthreaded, the scraper device travels upwardly therewith, loop 41 sliding upwardly in slots 51.

It is pointed out that, since the arms 45 and 46 are resilient or yieldable, they readily ride over irregularities of the walls of the bowl. In bowls having accurately formed interior walls, a rigid scraper device functions satisfactorily. However, in many bowls the interior walls are not accurately formed, and thus there would be considerable diihculty in scraping such walls with a rigid scraper unless the rigid scraper were resiliently mounted. After removal of the bowl 11, if it is desired to separate the scraper device from the bowl, the loop 41 may be gripped with a pair of pliers, or similar instrument, and pulled downwardly to cause the arms 45 and 46 to bend or deform inwardly to the position shown in Fig. 7. With the arms in such position, they may be pulled through the smoke hole 25. The scraper device is formed of metal or other material of suflicient resiliency to permit bending of the arms to the Fig. 7 position without permanently deforming them. After removal, the scraper device may be cleaned and replaced by pressing arms 45 and 46 inwardly and inserting them into the smoke hole, while at the same time shoving upwardly on the loop portion 41. It is pointed out that it is not normally necessary to separate the scraper device from the bowl 11 when it is desired to clean the pipe. However, occasionally it may be desired to remove the scraper. device to clean it.

If, after considerable use of the pipe, the arms of the scraper device do not yieldingly engage the interior walls of the pipe bowl with suflicient pressure, this may be remedied by applying a sufficient upward bending force to the central bottom portion of loop 41, when the scraper device is removed, to permanently further spread the arms 45 and 46.

When the bowl is removed from the pipe base, the stem 17 may be turned within the cylindrical passageway because the scraper device is removed with the bowl. The side edges of the trough-shaped stem function to scrape the walls of the passageway 31 during turning movement of the stem relative to the pipe base The end of the stem remote from i 4 so as to clean the walls. It is pointed out that the trough-shaped stem .sealingly engages the bottom wall of the passageway 31, and that the end wall 64 of the trough-shaped stem sealingly engages against flat wall 33 of the pipe base, to prevent moisture from accumulating between the stem and the walls of passageway 31. Thus, the moisture and detritus drawn from bowl 11 toward the mouthpiece collects in the trough-shaped stem. The stem functions as a removable bottom for the interior of the base and may be withdrawn from the pipe base and flicked to throw out such moisture and detritus. Thereafter, the trough-shaped stem may be readily cleaned by running. a tissue or cloth down the length thereof.

To clean out passage 65, stem 17 may be withdrawn sufliciently to expose the end of the trough nearest the mouthpiece 19, whereafter the user may blow through the passage 65 and discharge therefrom accumulated matter therein, including accumulated moisture, without applying any pressure to the contents of the bowl. Because the stem is completely open, if the stem is inverted during such operation, the accumulated matter will fall free of the pipe. To more thoroughly clean the passage, a pipe cleaner may be passed therethrough.

If tobacco is packed too firmly into the bowl of the pipe of-thepresent invention, it may be loosened by slightly turning the bowl. Thus, the user does not have to dig out such tobacco and repack the bowl.

Having described the invention in what are considered to be the preferred embodiments thereof, it is desired that it be understood that the invention is not to be limited by the specific details shown unless they constitute critical features of the present invention, all of which will be apparent by reference to the following claims.

' I claim:

1. In a tobacco pipe comprising a bowl base, a bowl threadedl y mountedon said base, a mouthpiece connected toandextending from said base, said bowl having interior side and bottom walls defining a cavity to receive tobacco, the bottom wall of said bowl having a hole extending therethrough, a scraper for said bowl including a lower portion engaging the bottom of the bowl, a central or intermediate portion occupying a position within said hole, and an upper portion occupying a position within said bowl and engaging the interior bottom and side walls thereof, said base having a slot formed therein slidably receiving the lower portion of said scraper and operable to prevent rotation of said scraper upon rotation of said bowl but to permit upward movement of said scraper with said bowl when said bowl is unthreaded from said base.

2. In a tobacco pipe comprising a bowl base, a bowl revolvably mounted on said base, a mouthpiece c0nnected to and extending from said base and communicating with said bowl through said base, said bowl having a tobacco receiving cavity formed therein defined by interior side and bottom walls, the bottom wall of said bowl having a circular axial hole extending therethrough, said base having a cavity formed therein of a size laterally greater than said hole, a scraper comprising a length of spring wire having a lower open loop portion occupying a position beneath said bowl, but within said base, parallel closely disposed leg portions extending from the ends of the loop portion and occupying positions within said hole and engaging the wall of said hole, and upwardly diverging arm portions extending from the ends of said leg portions and occupying positions in yielding engagement with the interior bottom and side walls of said bowl so that turning movement of said bowl tends to turn the scraper also, and means concealed within said pipe and engaging said loop portion for holding said scraper againstv turning movement with said bowl and against. turning movement with respect to said base whereby-when said bowl is rotated with. respect. to said base said scraper functions to scrape the interior walls of said bowl and the walls of said hole.

3. In a tobacco pipe comprising a bowl base, a bowl on the base, a mouthpiece connected to and extending from the, base, said bowl having a tobacco receiving cavity formed therein defined by interior side and bottom Walls, said bottom wall having a hole formed therethrough, said base having a cavity formed therein communicating with said hole and extending laterally beyond the confines of said hole, a scraper comprising a section of wire having an intermediate portion extending through said hole and having a smaller cross-sectional area than said hole so as to leave a space for the passage of smoke through said hole, said intermediate portion being disposed eccentrically with respect to the center of said hole and engaging the wall defining said hole, said scraper having end portions extending generally laterally from said intermediate portion within the bowl cavity and within the base cavity, said intermediate portion engaging the wall of said hole, at least one of said end portions being formed of yieldable material to be deformable to permit it to be pulled through said hole to permit separation of said scraper and said bowl, and means for efiecting relative rotation between said bowl and said scraper to clean the walls of said hole and of said cavity.

4. In a tobacco pipe comprising a bowl base, a bowl threadedly mounted on said base, said base including a stem portion having a cylindrical passageway formed therethrough extending into the body of the base and terminating at a point within said body of said base, a mouthpiece having an elongated stem fitting within said cylindrical passageway, said stem being trough-shaped at least at the portion thereof below said bowl, said bowl having a tobacco receiving cavity formed therein defined by interior side and bottom walls, said stem being trough shaped at least at the portion thereof below said bowl, said bottom wall having a hole formed therethrough centrally thereof, said bowl base having a cavity formed therein communicating with said hole and extending laterally beyond the confines of said hole and communicating with said cylindrical passageway, and a scraper having an intermediate portion extending through said hole and end portions extending generally laterally from said intermediate portion within the bowl and base cavities, the lower end portion extending down within said cylindrical passageway in a position to engage said stem should the stem be turned to prevent complete rotation of said trough-shaped stem within said cylindrical passageway and serving to orient said trough-shaped stem so that it is directed toward said bowl in position to receive and contain moisture and detritus drawn from the bowl toward the mouthpiece, said bowl base having a slot formed therein slidably receiving the lower end portion of said scraper, whereby when said bowl is unthreaded said scraper is prevented by said base from mutual rotation with said bowl to thus cause said scraper to scrape the interior walls of said bowl but is permitted to bodily move upwardly with said bowl as said bowl is unthreaded, whereafter said mouthpiece may be turned within said cylindrical passageway to efiect a scraping action of the side edges of said trough with respect to the walls of said passageway to clean said walls.

5. A tobacco pipe comprising a bowl base, a bowl removably mounted on said base for rotation with respect thereto, a mouthpiece connected to and extending from said base, said bowl having interior side and bottom walls defining a cavity to receive tobacco, the bottom wall of said bowl having a hole extending therethrough, a scraper for said bowl including a lower portion engaging the bottom of the bowl, an intermediate portion occupying a position within said hole, and an upper portion occupying a position within said bowl and engaging the interior bottom and side walls thereof, said intermediate portion having a smaller cross-sectional area than said 6. a, hole to leave a space for the passage of smoke through said hole, said intermediate portion being disposed eccentrically with respect to thecenter of said hole and engaging the wall defining said hole, said base having defined by interior side and bottom walls, the bottom wall of said bowl having a circular axial hole extending therethrough, said base having a cavity formed therein of a size laterally greater than said hole, a scraper comprising a length of spring wire having a lower open loop portion occupying a position beneath said bowl, parallel closely disposed leg portions extending from the ends of the loop portion and occupying positions within said hole and engaging the walls thereof, and upwardly diverging arm portions extending from the ends of said leg portions and occupying positions in yielding engagement with the interior bottom and side walls of said bowl, and means contained within said pipe for effecting relative rotation between said scraper and said bowl to scrape the interior walls of said bowl and the walls of said hole.

7. A tobacco pipe comprising a bowl base, a bowl removably mounted on said base for rotation with respect thereto, a mouthpiece connected to and extending from said base and communicating with said bowl through said base, said bowl having a tobacco receiving cavity formed therein defined by interior side and bottom walls, the bottom wall of said bowl having a hole extending therethrough, said base having a cavity formed therein of a size laterally greater than said hole, a scraper comprising a length of spring wire bent to provide a lower open loop portion occupying a position beneath said bowl, parallel closely disposed leg portions extending from the ends of the loop portion and occupying positions within said hole, and at least one upwardly and outwardly extending arm portion connected to the end of one of said leg portions and occupying a position in yielding engagement with the interior bottom and side walls of said bowl, and means for holding said scraper against turning movement with said bowl whereby when said bowl is rotated with respectto said base said scraper functions to scrape the interior walls of said bowl and the walls of said hole, said arm portion having suificient resiliency to facilitate its being pulled through said hole to provide for assemblage and disassemblage of said pipe.

8. A tobacco pipe comprising a bowl base, a bowl mounted on the base, said base having a stem portion provided with a cylindrical passage extending into the body of said base, a mouthpiece having an elongated stem cooperatively fitting within said passageway, said stem being of trough shape whereby to collect moisture and detritus drawn from said bowl toward said mouthpiece, and scraper means within said pipe and engaging the interior wall of said bowl and preventing turning movement of said trough-shaped stem in said passageway and or enting said trough-shaped stem so that the trough of said stern faces in the direction of the bowl, said means being removable to permit rotation of said stem and thus to permit scraping of the walls of the passageway by the side edges of said trough.

References Cited in the file of this patent (Other references on following page) 7 UNITED STATES PATENTS Taylor Oct. 3, 1916- Laban- Aug, 22, 1922' Drapeau et a1. Mar. 31, 19 25 Congdon Feb. 15, 1927 Mathison Ian. 7, 1930 8; Pedery Apr. 21, 1936 Marshall Feb. 12, 1952 Di Federico et a1. Aug. 25, 1953 FOREIGN PATENTS Great Britain 1911 Great Britain of 1895 

